I played Tetris at a young age ; it stimulated my mind and it was way to addictive ; I always wondered what was the thingi's (code) behind this simple game . .

No one has the original code for this game besides Alexey Pajitnov (the developer). Many have looked at how the game is played and created varients of the game using their own coding ; I have done the same . . and you free to examine my code (just ask for it)

Look at the history of tetris (link below) and all the legal battles around it . .